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- 'use strict';
- define(['phaser'], function(Phaser) {
- function Gesture(game) {
- this.game = game;
- this.swipeDispatched = false;
- this.holdDispatched = false;
- this.isTouching = false;
- this.isHolding = false;
- this.onSwipe = new Phaser.Signal();
- this.onTap = new Phaser.Signal();
- this.onHold = new Phaser.Signal();
- }
- Gesture.prototype.update = function() {
- var distance = Phaser.Point.distance(this.game.input.activePointer.position, this.game.input.activePointer.positionDown);
- var duration = this.game.input.activePointer.duration;
- this.updateSwipe(distance, duration);
- this.updateTouch(distance, duration);
- };
- Gesture.prototype.updateSwipe = function(distance, duration) {
- if (duration === -1) {
- this.swipeDispatched = false;
- } else if (!this.swipeDispatched && distance > 150 && duration > 100 && duration < Gesture.TIMES.SWIPE) {
- var positionDown = this.game.input.activePointer.positionDown;
- this.onSwipe.dispatch(this, positionDown);
- this.swipeDispatched = true;
- }
- };
- Gesture.prototype.updateTouch = function(distance, duration) {
- var positionDown = this.game.input.activePointer.positionDown;
- if (duration === -1) {
- if (this.isTouching) {
- this.onTap.dispatch(this, positionDown);
- }
- this.isTouching = false;
- this.isHolding = false;
- this.holdDispatched = false;
- } else if (distance < 10) {
- if (duration < Gesture.TIMES.HOLD) {
- this.isTouching = true;
- } else {
- this.isTouching = false;
- this.isHolding = true;
- if (!this.holdDispatched) {
- this.holdDispatched = true;
- this.onHold.dispatch(this, positionDown);
- }
- }
- } else {
- this.isTouching = false;
- this.isHolding = false;
- }
- };
- Gesture.SWIPE = 0;
- Gesture.TAP = 1;
- Gesture.HOLD = 2;
- Gesture.TIMES = {
- HOLD: 150,
- SWIPE: 250
- };
- return Gesture;
- });
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